public bool CheckValidationCode(string email, string category, string validateCode, int maxRetryTime)
        {
            bool isSuccess;

            using (var biz = new ValidationEmailBusinessManagement())
            {
                biz.BeginTran();
                using (var manager = new EmailValidationManager())
                {
                    var validation = manager.GetEmailValidation(email, category);
                    if (validation == null)
                    {
                        throw new Exception("尚未发送验证码");
                    }
                    if (validation.RetryTimes >= maxRetryTime)
                    {
                        throw new Exception(string.Format("重试次数超出最大限制次数【{0}】次,请尝试重新发送验证码。", maxRetryTime));
                    }
                    if (validation.ValidateCode == validateCode)
                    {
                        manager.DeleteEmailValidation(validation);
                        isSuccess = true;
                    }
                    else
                    {
                        validation.RetryTimes++;
                        manager.UpdateEmailValidation(validation);
                        isSuccess = false;
                    }
                }
                biz.CommitTran();
            }
            return(isSuccess);
        }
 public void DeleteValidation(string email, string category, int delaySeconds, string delayDescription)
 {
     using (var biz = new ValidationEmailBusinessManagement())
     {
         biz.BeginTran();
         using (var manager = new EmailValidationManager())
         {
             var validation = manager.GetEmailValidation(email, category);
             if (validation == null)
             {
                 throw new Exception("验证码不存在,可能是已经通过验证");
             }
             var span = validation.UpdateTime.AddSeconds(delaySeconds) - DateTime.Now;
             if (span.TotalSeconds > 0)
             {
                 throw new Exception(string.Format("删除验证码必须距上次验证码操作【{0}】以上,验证码上次操作时间【{1:yyyy-MM-dd HH:mm:ss}】。", delayDescription, validation.UpdateTime));
             }
             manager.DeleteEmailValidation(validation);
         }
         biz.CommitTran();
     }
 }